Sodium sulfide nonahydrate, PurReagent, >=99.0%

PurReagent


Linear Formula:  Na2S ·9H2O
Molecular Weight:  240.18 g/mol
CAS Number: 1313-84-4

Properties

Water Solubility Soluble
Assay Purity >=99%
M pt. 52 °C
Density 1.43 g/ml
Form Solid

Safety Information

Hazard Statement(s) H302,H311,H314,H410
Precautionary Statement  P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
GHS Pictogram
Signal word Danger
HS Code 28301000
Storage Temp. 2-8°C
Storage Class 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
UN Number 1849

Description

Application
Leather industry- dehairing hides during processing. Pulp and paper industry- used in kraft pulping. Water treatment- removal of heavy metals by precipitation. Chemical manufacturing- production of sulfur-containing compounds and dyes.

Purpose
Acts as a source of sulfide ions. Enables reduction reactions and precipitation of metals. Provides a strong alkaline and reactive sulfur environment.

General Description
Yellow solid with 9 water molecules (nonahydrate). Strongly alkaline and water-soluble. Releases hydrogen sulfide (H2S) gas on contact with acids (rotten egg smell). Hygroscopic and sensitive to air (can oxidize).